Is Jumping Rope Bad for Your Knees?

Jumping rope is not inherently bad for your knees, and the things that decide how hard it is on you are almost all things you control. There are four of them: the surface you jump on, the length of your rope, how high you jump, and how fast you add volume. Get those right and skipping is one of the most time-efficient pieces of cardio available in a small room. Get them wrong — a too-short rope on a concrete garage floor, twenty minutes a day from a standing start — and it is an unnecessarily punishing way to train.

One thing we are going to do differently from most pages answering this question. We are not going to tell you how many times your bodyweight goes through your knee when you skip. You will see figures like that quoted widely, and when we went looking for a primary source we could read in full and cite, we could not find one — the trail led to retailer blogs citing each other and to papers we could not open. Our rule on this site is that we do not publish a number we cannot source, so this page has no impact figures in it. Everything below is either a maker’s published specification, a public health guideline, or plainly-labelled mechanical reasoning.

And the obvious caveat, stated once and meant: if you have knee pain now, or a diagnosed knee condition, whether you should skip is a question for your clinician. Nothing here is medical advice and we have no way of knowing anything about your knees.

The four things you control

1. Surface, which is the biggest single lever

You want firm, flat, non-slip, with a little give. In rough order: rubber gym flooring is ideal, a wooden floor is good, vinyl or laminate over a subfloor is fine, and concrete is the worst common choice — no give at all, and it chews through a thin steel cable at the point where it touches down.

Two surfaces people reach for that make things worse, not better. The first is a soft foam exercise mat. It feels like the right answer and is not: thick soft foam compresses unevenly under each landing, which makes the landing unpredictable, and on a smooth floor the mat itself can slide. We go through why fitness mats and yoga mats are built for opposite jobs in yoga mat vs exercise mat. The second is grass or thick carpet, which absorbs the rope’s rebound and changes the rhythm, so you end up working harder to keep the rope moving.

If you are in an apartment and the real constraint is the neighbour below rather than your knees, that is a different problem with a different answer — quietest cardio machines covers what does and does not travel through a building.

2. Rope length, because a short rope forces a higher jump

This is the most actionable item on the page and almost nobody checks it. A rope that is too short does not just feel awkward — it forces you to jump higher on every single repetition to give the cable room to pass. A sizing error therefore converts directly into extra work and extra landings, hundreds of them per session.

Crossrope publishes the test, and it takes thirty seconds: stand on the middle of the rope and pull the handles up — they should reach roughly your armpits. Crossrope also publishes a full height chart (from a 7 ft rope up to 4 ft 6 in in height, to a 9 ft 6 in rope for 6 ft 2 in and above) and one piece of advice worth repeating verbatim: if you are between sizes and new to the rope, “go longer. More clearance gives you more forgiveness while you develop your timing”.

Our jump rope sizing guide works through the whole chart. If your rope came pre-cut at a fixed length and the handles reach your ribs rather than your armpits, that rope is the problem, not your knees.

3. Jump height, which should be almost nothing

An inch or two of clearance is enough. The cable needs to pass under your feet, and that is the entire requirement. The classic beginner error is a big knee-driven hop, and it is unhelpful in three ways at once: it multiplies the landings you have to absorb, it destroys the rhythm, and it exhausts you long before your cardiovascular system is actually working.

The fix is not “jump lower” — telling someone to jump lower rarely works. It is turn the rope with your wrists rather than your shoulders. Shoulder rotation is slow and produces a big arc you then have to clear; wrist rotation produces a fast, small arc that you can clear with a tiny hop. Change where the rotation comes from and the jump height takes care of itself.

Land on the balls of your feet with soft knees and let the ankle and calf do the absorbing, which is what they are for. A stiff-legged landing passes everything straight up the chain.

4. Volume progression, which is where people actually get hurt

Almost every complaint of “skipping hurt my knees” traces back to the same pattern: nothing for a year, then twenty minutes a day for a week. Tendon and joint tissue adapt to load, but slowly, and the rate of increase matters more than the total.

The good news is that the dose you need is small. Skipping is a vigorous-intensity activity for most people, and the federal physical activity guidelines put the weekly target at 150–300 minutes of moderate or 75–150 minutes of vigorous aerobic activity, with the AHA framing it the same way. Vigorous minutes count double, so you are looking at a target you can meet in well under half an hour a day, a few days a week.

A sane way in: start with intervals rather than continuous skipping — thirty seconds on, thirty seconds walking, for five or six rounds — and add a round or two a week. Keep a rest day between sessions at first. And treat new joint pain as information: pain that arrives during a session and goes within the hour is usually load; pain that is still there the next morning means you went too fast.

Which rope helps, and which makes it worse

Equipment is not the main variable here, but two choices genuinely interact with the knee question. First, adjustability: a rope you can set to the right length is a rope that will not force a higher jump, and a cut-to-size rope can only get shorter once. Second, cable type: a thin speed cable rewards a small jump and fast wrists, which is the technique you want anyway, whereas a thick PVC cable turns slowly and pulls people into a bigger, slower hop.

On that basis the WOD Nation Attack Speed is the pick: a published 11 ft cable with fold-over adjustment and no tools, so you can set and reset the length as your technique changes, plus a four-bearing system for a consistent turn. If low-ceiling jumping is the constraint — and a low ceiling is another thing that forces a bad jump — the Benvo cordless rope removes the cable entirely, which is a real answer for a basement or a small apartment even though it loses the timing element.

WOD Nation Attack Speed - adjustable without tools, 11 ft cable

$17.99

Amazon: Only 4 left in stock - order soon

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Price as of October 22, 2026. #ad How we’re funded

Benvo cordless - for low ceilings, no cable to clear

$12.99

Amazon: Only 8 left in stock - order soon

Check Price on Amazon

Price as of October 22, 2026. #ad How we’re funded

The full ranking is in best jump ropes, and if you are new to this, best jump ropes for beginners ranks on what forgives a bad rep rather than on top-end speed.

When a rope is the wrong tool

Sometimes the honest answer is that this is not your cardio. If skipping consistently hurts, if you have been told to avoid impact, or if you are carrying substantially more bodyweight than you want to be landing on repeatedly, there are three alternatives that give you the same cardiovascular work with no landing phase at all:

• Rowing. Seated, both feet strapped to a footplate, no impact, and it recruits far more muscle than a rope does. See best rowing machines.
• An elliptical. Your feet never leave the pedals, so there is no landing to absorb at all. See best ellipticals.
• A stationary bike. The lowest-impact option of the three, and the one with the most research behind it as an exercise intervention — the systematic review of aerobic exercise for chronic low back pain we cite elsewhere drew on walking, stationary cycling and treadmill trials. See best exercise bikes.

Our best exercise equipment for bad knees guide goes through the whole low-impact field, and rowing machine vs elliptical compares the two leading options directly.

There is no virtue in picking the more punishing option. The guidelines count minutes of activity, not minutes of impact — and the exercise you will still be doing in six months beats the one that is harder on you now.